Slicing-machine.



3 SHEETS-SHEET 1.

PATENTED AUG. 4, 1908.

I HELLER SLIGING MACHINE. APPLICATION FILED DBG.29,1905.

miEl-li- V I BATENTED AUG. 4, 1908.

I HELLER. SLIGING MACHINE.

APPLICATION FILED 111:0. 29, 1905. 3 SHEETS SHEET 2.

Vina/8136? 'I/I4AA No. 894,829. PATENTED AUG. 4, 1908. I. HELLER. SLIGING MACHINE.

APPLICATION FILED DEG.29,1905.

3 SHEETS-SHEET 3.

III

ISIDORE HELLER, OF CHICAGO, ILLINOIS, ASSIGNOR TO-WOLF, SAYER & HELLER, OF

CHICAGO ILLINOIS, A CORPORATION.

SLICING-MACHINE.

Specification of Letters Iatent.

Patented Aug. 4, 190.8.

Application filed December 29, 1905. Serial No. 293,715.

To all whom it may concern:

Be it known that I, ISIDORE HELLER, a citizen of the United States, and a resident of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Slicing-Machines, of which the following is declared to be a full, clear, and exact description.

The invention relates to slicing machines and more particularly tomachines for slicing meat and the like, and which usually com prise a revolving knife and a suitable support for the meat. In such machines either the knife or the support is shifted at right angles to the axis of the knife to effect the cut and the support is advanced after each cut in a direction parallel to the axis of the knife a distance equal to the desired thickness of the slice. v

The present invention seeks to provide a simple, inexpensive and effective arrangement of parts and in particular to provide means for effectively holding the meat sup port and traveling carriage therefor against ateral movement or side play which would otherwise cause uneven cutting of the slices.

Further objects are to provide fortaking up the wear, of the guides for the movable support and carriage and to provide a simple and effective feed mechanism for the meat support which may be readily adjust? ed for shifting the support in accordance with the desired thickness of the slices to be cut.

With these objects in view, the invention consists in the features of construction, combinations and arrangements of parts hereinafter set forth, illustrated in the accompanying drawings and more particularly pointed out in the a pended claims.

In the drawings, .igure 1 is a plan View of the improved machine with a part broken away to show the feed screw. Fig. 2 is a longitudinal section thereof. Fig. 3 is a partial side view showing the operating devices for the feed mechanism. Fig. 3 is a detail section on line aa. of Fig. 3. Fig. 4 is a cross section throughthe machine. Fig. 5 is a detail view in elevation of a portion of the support.

The rectangular base frame 10 is carried on suitable legs or supports 11 and is pro vided on one side with an off-set portion 12 upon which is mounted a standard or upright 13. A short shaft 14 journaled in the be taken up so that the table will upper end of u right 13, carries a revolving cutting disk or ife 15. In the form shown the knife 15 is so supported that it is only capable of a revolving movement, while the meat support is shifted in a direction at right angles to the axis of the knife to effect the out. For this' pur ose, the support is mounted upon a movagle carriage or-table 16 having depending side. portions 17 upon which the upright rollers 18 are mounted. These rollers extend within grooves on the inner faces of a pair of guide rails 19 and 19'. These rails are mounted above the side edges of the base frame 10 and are secured at their ends to lugs 20 projecting upwardly from the base frame. The rails 19 and 19 are arranged on edge and the upright rollers 18 of the carriage 17 extend within grooves or ways on the inner faces of the rails, so that the carriage'is securely held'against vertical and lateral movement but is free to movelongitudinally upon the base frame in -a direction at right angles to the axis of the knife.

To further insure that there shall be no lateral movement of the carriage 16,.it is provided on its under side with horizontal rollers 18 (see Figs. 1 and 4) that engage the u per edges of the rails 19 and 19', and ti: outer rail 19 is adjustably held in place by set screws or bolts 20 and 20 (see Figs. 3 and 3) that extend through the lugs 20. Bolt 20 extends through an opening in lug 20 and is threaded into the rail, while bolt 20 is threaded through the 111 and engages the outer face of the rail. these b0lts,'all play and wear between the carriage and rai y adjusting s may be taken up. A lug 10 fixed to the side of-the base frame and exguide rails 1n order that the need of other material shall be accurately cut into uniform slices. It 1s ap arent that by adjustlngthe ide rail 19 a wear, looseness or lost motion between the guide rails 19 and 19 and the horizontal rollers 18 on the carriage, will accurately knife 15 wil reciprocate in a straight line without an lateral movement whatsoever. Should the guide rails or rollers become worn, the wear may be taken up'by adjusting the rail 19.

The main shaft 21 extends beneath the base frame 10 and is mounted in suitable bearings 22 depending therefrom (see Fig. 2).

At its outer end it is provided with a small fly-wheel 23 and operating handle 24. At its inner end it is provided with a beveled pinion 25 meshing with a beveled gear 26 on the lower end of a short shaft '27. Shaft 27 is jonrnaled in a boss .28 on the under side of the base frame and carries at its upper end a disk 29 arranged within a recess in the upper face of the base frame. A connecting rod 30 is pivoted-to the disk and to a lug 31 depending from the outer edge of the carriage or table 17. A shaft 32 is arranged at right an-' gles to the mainshaft 21 and is carried in suitable bearings 33 depending from the base frame and from the extension 12 thereof. At its inner end, this shaft is provided with a beveled pinion 34 meshing with the gear 26. At its outer end the shaft 32 is provided with a sprocket 35 and a chain 36 passes over this sprocket wheel and over a smaller s rocket wheel 37 onthe outer end of the knife shaft 14'. As the power shaft 21 is rotated, the

mechanism described and at the same time,

the carriage 17 will be reciprocated back and mounted to shi t between upturned flanges or guides 39 at the edges of the carriage 16 and in a direction at right angles to the movement of the carriage. A pair of uprights 40 and 41 are secured at their lower ends by bolts 42 between lugs 43 on the inner edge of the su porting slide 381 These uprights-extend t ough openings in a cross bar 44 that is U-shaped in section and is provided with teeth 45 on its lower edge for,

. gripping the meat or like material to be sliced. The U-bar is held in adju'stedpositionibyratchet teeth on the outer faces of the uprfghts'm and 41' and the upright 40 is pivoted upon the bolt 42 to yieldinwardly so that the cross bar 44 may be readily adjusted to grip pieces of meat of different sizes.

A celled spring 46 extending between the plate 38 and a lug 47, on the inner edge of the 8140, normall forces the latter outwardly andsecurely ho ds the crossbar 44 in adj usted position. Bar 44 is preferably provided be revolved by the driving y, with a handle piece 48 by which it may be shifted up and down by the uprights. The supporting slide or plate 38 is also preferably provided with one or more cross rows of upwardly projecting prongs 49 which assist in holding the iece of meat or like material sccurely in pace as it is being sliced. The slide 38 also has at its opposite side edges inverted U-shaped handles 50 that project upwardly from the plate for convenience in shifting the same.

It is highly desirable that the supporting slide shall be securely held against side lay and that the wear between the slide an( the guides 39 be taken up. For this purpose, a

spring-held device or frame is arranged to engage one of the side edges of the slide to press it against the guide 39 at its opposite side edge and automatically take up any wear. Preferably also this spring-held frame is arranged to carry a feed screw that is releasably held in engagement with a half-nut on the supporting slide or plate.

The half-nut 51 is rigidly secured to the outer portion of one of the handles 50 of the slides 38, and faces outwardly or away from the slide to engage the feed screw 52. The screw is j ournaled in an upright loop-shaped frame mounted at the side of the carriage and comprising side arms 53 connected at their upperends by a cross bar 54. Side arms 53 are provided with bearings 52 for the screw 52 and the side arms are also provided with lugs 55 (see Fig. 4) arranged between lugs 56 that project from the side of the carriage or table 16. Pivot bolts 57 extend through the lugs 55 and'56 so that the screw-carrying frame is pivoted or hinged to the carriage. A cross bar 58 is connected to the side portions 53 beneath the feed screw 52 by screws 59. A pair of pins 60 fixed to the side edge of the carriage extend horizontally through the bar 58,(see Fig. 2) and springs 61, coiled about the pins and extending between the heads thereof and washers 62 thereon, press the screw against the half-nut 51 on the sideof the sup orting slide. The slide 38 is thus snugly he d by the spring device against the guide 39 at the opposite side and all loose play and wear is automatically taken At the same time, the spring-held frame also performs the function of releasably'holding the feed screw into engagement with the half-nut on the supporting slide. By grasping the upper bar 54 of the frame, the operator may readily move the screw back against the pressure of springs 61 out 'of engagement with the nut 51, so that the meat support may be drawn back or adjusted upon the carriage.

A ratchet 63 is fixed to the outer end of the screw 52 and an arm 64 loosely mounted on lower end of the arm 64 hangs down outside of the carriage and base frame and a bracket 67 fixed to the base frame, carries a pin or lug 68 at its upper end that projects outwardly into the path of movement of the arm, so that as the carriage is shifted on its forward or cutting stroke, arm 64-will engage, the lug 68 and the ratchet 65 will be shifted backwardly over the teeth of ratchet 63. At the end of the return stroke of the carriage, the arm 64 is brought against the end of a sto bar 69 and the screw is turned by the medlum of the pawl or ratchet mechanism to advance the me-atjsupport in a direction transverse to the travel ofthe carriage and for a distance e ual to the thickness of a single slice. Stopar 69 is referably longitudinally adjustable inthe c irection of the travel of the carriageso that the thickness of the slice may be varied as desired. For this purpose, the bar is mounted toshift longitudinally through a suitable holder 7 O fixed to the side of the base frame 10. -A screw 71 threaded into the side-of the bar 69 projects through a slot 72 in the side of the. holder 70 (see Fig. 3) and the screw is provided with a head or flange 73 and fin er piece 7 4; When the screw is loosened the ar 69 may be readily adjusted as desired, and it may be gripped is adjusted position when the screw is turned to bring its head or flange 73 snugly against the side of the holder 70'."

In operation, the piece of meat or other material to be sliced, 1s securely held in place between the su orting slide or plate 38 and cross bar 44. The bar 69 is ad pst-ed in accordance with the desired thic ness of the slices to be cut. The main shaft 21 isv rotated by means of the handle 24 to reciprocate the carriage 16 and rotate the knife 15. As the carriage is reciprocated, the arm 64 will strike alternately against the stop lug 68 and stop bar 69, to shift the pawl back and forth and intermittently rotate the ratchet 61 to disengage the screw from the ha 63 and screw 52 to advance the support after each slice iscut. The meat-su porting slide may be readily retracted or a justed as desired by shifting the screw-holding frame outwardly against the tension of the springs f-nut on the side of the slide 38. The threads of the screw 52 terminate, as shown, short of the inner bearing 52, so that the meat support cannot be advanced beyond the position shown in Fig. 1 into line with the knife.

The side play and wear between the su porting slide and. carriage is automatically taken up by the spring device or screw frame that presses against one side of the slide.

The carriage is snugly held against sideplay by adjusting the screw 10" and the bolts 20'- and 20 to press the guiderail19 against the horizontal rollers 18 of the carria e. At the same time, the rollers prevent iction between the carriage and its guide rails. By

. with the base thus securely holding the meat support and carriage against side play, the proper operation of the machine is effected, since if there is any looseness of these parts, the knife will not cut evenly'and the slices will be of different thickness. But with the resent irn roved construction, the knife wi cut.

pro er y and evenly and, when the feed mec anism is once set for the desired thickness, all the slices or cuts will be of pniform thickness.

It is obvious that'nu-merous' changes may be made in-the details of structure without departure from the essentials of the invention. i

Having described my invention, What I claim as new, and desire to secure by Letters Patent, is

" 1. In slicing machines, the combination with the knife, the travelin carriage and drive mechanism for said kn' e and carriage, of a su' porting slide for the material moving 'n gui es on said carriage, and an upright, spring-held frame pivoted to the carnage at one side of the slide and arranged to hold the. same against lateral play,---substantially a described.

2. In slicin -machines, the combination ame, the rotary knife and the travelin carriage and driving mechanism for said knife and said carriage, of guide rails on the base frame for said carriage, means for adjusting one of said rails laterally to and from said carriage and in the plane thereof, horizontal rollers disposed between said rails and carriage, a supporting slide on said carriage and feed mechanism for said slide, substantially as described. I

3. In slicin machines, the combination with the baseame, a knife, a trayelin earria e, and drivingrnechanism for said nife an carriage, of guide rails on the base frame for said carriage, vertical rollers on said carriage arranged within ooves on the inner faces-of said rails, horizontal roller on said carriage engaging said rails, an adjusting screw for one of said rails, a supporting slide on said carriage and feed mechanism for said slide, substantially as described.

4, In slicing machines, the combination with the meat support, of feed mechanism therefor, comprising a half-nut fixed to the support, a feed screw, a shiftable' frame wherein'said screwis 'ournaled and springs engaging said frame or yieldingly holding said screw into. engagement with said nut, substantially as described.

machlnes, the combination 5. In slicin with .the kni e and the supporting slide mounted inguides and havmg means for clamping the meat or like material, thereto,

of feed mechanism for said slide corn rising a half-nut fixed to one side of said ho der, a

feed scre'w arranged at the side of said holder,

for engaging said nut, and a spring-held journaled, arranged to framev wherein said screw is journaled, said 6. In slicin machines, the combination with the kn' e and the supporting slide,

mounted in guides and -having means for clamping the meat or like material thereto, of. feed mechanism for said supporting slide comprising a half-nut, fixed to'oneside of said slide, a feed screw for engaging said nut, an upright frame 'comprismg pivoted side arms and a connecting cross-bar, said side arms 'having bearings wherein said screw is journaled, fixed pins extending through said frame and a s ring on said pins engaging the frame for yieldingly pressing the screw against said nut, substantially as described.

7. In slicing machines, the combination with the base frame, a knife, a sliding carriage and driving mechanism, of a supporting slide arranged to move in ides on said carriage, a half-nut fixed to sai slide, a feedscrew, and a spring-held 'frameon the car. riage wherein sai yie dinglyholdin the same into engagement with sald nut, su stantiallyas described.

8. In slicing machines, the combination with the base frame, a knife, a sliding carriage and driving mechanism, of a supportin slide moving in guides on said carriage, a hadf-nut fixed to one side of said slide, a feed screw and a spring-held frame pivoted on,

one side of said carriage-wherein said screw is ress the screw laterally against said nut, whereby play or loose ness between the slide and the guides on the carriage is taken up, substantially as described. 1

9. In slic' machines, the combination with the bas d frame, a rotary knife, a sliding carriage and driving mechanism, of. a sup: porting slide moving in guides on said carscrew is journaled for stops on said riage, said slide having means for clamping the meat thereto and a half-nut fixed to one of its side edges, an upright frame pivoted at its lower end to the side edge of said carriage and having bearings wherein said screw is journaled and s rings engaging said frame for yieldingly ho ding said screw against said nut, substantially as described.

10. In slicin machines, the combination with the base frame, a knife, a sliding carriage and driving mechanism, of a supporting slide moving in guides on said carria c, said slide having means at its inner end or clamping the meat thereto and u' right handles at its opposite side edges, a ha f-nut fixed on one of said handles, an upright frame comprising side portions pivoted at their lower ends to the side edge of said carria e and a connecting top-bar between said si e of said carriage and extending through said frame, and sprin s on said ins engaging said frame for yiel ingly ho ding -sa1d screw against-said nut, substantially as described.

11.In slicing machines, the combination with the base frame, a rotary knife, a sliding carriage anddriving mechanism, of a sup porting slide arranged to slide on said carriage, said slide having a half-nut fixed thereto, a feed screw, a sprm held frame wherein said screw is journale said frame bein pivotally 'mounted on said carriage an yieldingly holding said screw into engagement with said nut, a ratchet fixedto said screw, an arm loose thereon, a pawl on-said arm engaging said ratchet and a pair of ase frame in the path 0 travel of said arm, one of said stops being longitudinally adjustable to and from said arm, substantially as described.

' ISIDORE HELLER. Witnesses:

HARRY L. OLAPP, FRED GERLACH. 

